Created
June 9, 2023 13:16
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Pulumi Interview
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const oldData = { | |
"region": "us-west-1", | |
"sku": { | |
"tier": "standard", | |
"name": "s1a", | |
}, | |
"replication": "local", | |
"oldKey": "oldVal" | |
} | |
const newData = { | |
"region": "us-west-1", | |
"sku": { | |
"tier": "standard", | |
"name": "s2a", | |
}, | |
"replication": "global", | |
"newKey": "newVal" | |
} | |
function getPrefix (prefix, key) { | |
if (prefix === '') { | |
return key | |
} | |
return `${prefix}.${key}` | |
} | |
function diff(oldData, newData, prefix = '') { | |
const diffs = [] | |
for (key in newData) { | |
if (oldData.hasOwnProperty(key)) { | |
if(typeof oldData[key] === 'object' && typeof newData[key] === 'object') { | |
diffs.push(...diff(oldData[key], newData[key], getPrefix(prefix, key) )) | |
} | |
else if (oldData[key] !== newData[key]) { | |
diffs.push(`${getPrefix(prefix, key)}: ${oldData[key]} -> ${newData[key]}`) | |
} | |
} else { | |
diffs.push(`${getPrefix(prefix, key)}: +${newData[key]}`) | |
} | |
} | |
for (key in oldData) { | |
if (!newData.hasOwnProperty(key)) { | |
diffs.push(`${getPrefix(prefix, key)}: -${oldData[key]}`) | |
} | |
} | |
return diffs | |
} | |
console.log(diff(oldData, newData)) |
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